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astraxan
[27]
2 years ago
7
Help with me 11 please
Mathematics
Answer
Comment
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1
answer:
tino4ka555
[31]
2 years ago
7
0
X + y + z = 27
x = 2z
y = 3 + z
2z + 3 + z + z = 27 ; 4z = 24; z = 6 youngest
x = 12 oldest
y = 9 middle one
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